The Griffin AR15 Stock Mounting Kit includes the Griffin AR-SOB buffer, AR15 maritime receiver extension, 17-7 wire spring, QD contour connect end plate, and castle nut. This kit is used to complete the back end of your lower receiver and is applicable to the AR15 family firearms and is compatible with Mil-Spec dimensioned butt-stocks.
| Manufacturer | Griffin Armament |
|---|---|
| AR-15 Parts | Buffers/Springs |
